Full scan of the hottest food and drug packaging t

2022-09-21
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Food/drug packaging technology full scan

in the era of leading technology, various advanced packaging technologies are also constantly applied to the field of food and drug packaging, including sterile packaging technology, active packaging technology, shading technology and nanotechnology. Insiders are constantly looking for the development direction of the future food/drug packaging industry

booster for food/drug packaging: aseptic packaging technology

aseptic packaging technology is a packaging technology that sterilized and cooled aseptic food is filled into pre sterilized containers in a sterile state, sealed and can be stored for a long time. As a packaging means of modern high-tech, it has only been used in production practice for decades. However, with the rapid development of science and technology and the improvement of relevant application technology, Jinan new era Gold Testing Instrument Co., Ltd. has continuously improved, and sterile packaging technology is increasingly widely used in food and drug packaging

aseptic packaging technology is a systematic project to realize comprehensive technical guarantee for the safety of food and drugs. It integrates optical electromechanical integration technology, modern chemistry, physics, microbiology, automatic control, computer communication and other high and new technologies. In order to meet the safety requirements of products, every subsystem of the system itself contains the achievements of new technologies, new materials and new processes. Although there are differences between the technical indicators of various sterile packaging equipment and the environmental characteristics of the final product, the ultimate goal must be to achieve safety assurance

aseptic packaging has many advantages: less changes in product flavor, tissue color, nutrient loss and protein thermal denaturation, and aseptic packaged meat products have no fat precipitation and meat juice separation, which can better maintain the original taste and flavor; The fruit juice in sterile packaging is easy to keep, fresh, practical and convenient. Aseptic packaging has low requirements on the strength of packaging containers, and the materials can be cardboard, plastic, aluminum, etc. especially paper containers have low cost, light weight, no metal dissolution, can be discarded after use, and simple treatment. 70% of American drinking milk is packaged with paper. Aseptic packaging also has the advantages of saving energy and being suitable for mass production

The concept of sterility is the product of medical development. With the development of modern microbiology and applied sterilization technology, human beings have a new understanding and control means to kill all pathogenic and non pathogenic microorganisms, including bacterial spores. As a technical index to evaluate food safety, commercial sterility is recognized by relevant industries and markets. The entry of aseptic packaging technology into the food industry first took dairy products as the starting point, and K Company as the representative took the lead in solving the aseptic packaging technology of milk, a highly nutritious and time-lapse food, breaking the time and space constraints of milk production and sales, which is undoubtedly a revolutionary breakthrough. In recent decades, with the continuous emergence of new packaging materials and new sterilization processes, as well as the promotion of market consumption of biotechnology products, Aseptic packaging extends from drugs to dairy products to the field of heat sensitive food in the beer, fruit juice and soft drink industries. The most representative is the aseptic packaging of beer, fruit juice and tea drinks

the application of active food packaging technology is difficult to use, and the prospect is very broad.

in order to package food safety and prevent consumers from eating spoiled food by mistake, scientists have developed some new packaging technologies that can indicate whether food is spoiled and packaging technologies that can extend the food warranty from 50kN to calibrate the fresh period. These technologies are collectively referred to as "active packaging technology" or "intelligent packaging technology"

one is the packaging technology of time and temperature indication. In fact, it is a label that can show how long the food has been stored at a certain temperature. This kind of label is like a target for shooting. It has many transparent rings with ferrules, and the central ring has a chemical substance. This chemical will polymerize with time and temperature, and change from transparent to black. If the packaged food is kept at a low temperature, the polymerization reaction of the chemical is very slow. Once the temperature increases, the polymerization reaction will accelerate, and the chemical will turn from transparent to black. As the bacteria on the food increase with the increase of temperature and time, the degree of Chemical Blackening will become more and more serious. When the inner ring turns black, it means that the food is no longer fresh. Consumers can judge whether the food has been stored at high temperature for a long time by the change of label color. Using this label to package food is convenient for consumers to choose targeted foods, and it is not easy to choose spoiled foods by mistake. In general, there are 2 (5) sets of spare speed change gears

another food safety instruction packaging technology, which is a kind of plastic disc doped with dye. It shows whether meat and vegetables have gone bad by interacting with the gas released by the food in the packaging bag. After this kind of plastic sheet is put into the food packaging bag, if the food in the packaging bag rots, it will release gas to change the color of the plastic sheet. Consumers can know whether the food is spoiled according to the color of the plastic sheet

another intelligent packaging technology can control the environment in the packaging bag and prolong the fresh-keeping period of food. Different fruits and vegetables need to be kept fresh under a certain concentration of oxygen and carbon dioxide, which is difficult to control in sealed packaging bags, because when the temperature is high, the fruits and vegetables in the packaging bags will consume more oxygen and release more carbon dioxide. Therefore, if not adjusted, the fresh-keeping period of food will be affected. In order to solve this problem, a company in Los Angeles, California, USA is researching a kind of packaging film called lnteller. This kind of membrane will change its permeability when the temperature changes, so as to keep different foods under the optimal concentration ratio of oxygen and carbon dioxide

another way to slow down the deterioration of food is to use an oxygen scavenger to remove oxygen and control the air environment in the packaging bag, so as to avoid oxidative deterioration of food. In the past, the commonly used method was to put a small sachet containing iron powder in the food packaging bag, and use the iron powder to consume the oxygen in the packaging bag, but this method has obvious shortcomings, because the warning sign of "inedible" on the small sachet is easy to cause consumer disgust. To this end, a New Jersey sealing material company is producing a packaging material that can remove oxygen by itself. This material has an oxidizable polymer inner layer, which can capture and consume the oxygen in the packaging bag like iron powder

intelligent packaging technology can facilitate consumers to choose safe and assured food, extend the shelf life of food, and is conducive to the preservation and transportation of food, which has a broad market prospect. It is predicted that in the near future, the number of packaging bags produced by intelligent packaging technology will account for 20% - 40% of the total number of food packaging bags

food packaging shading technology will improve the fresh-keeping period of food

light is a major enemy of the preservation of liquid foods such as milk, in which vitamins and proteins, the two most important nutrients, will be lost in large quantities once they are exposed to light. Sometimes the harm of light to food is even more serious than the consequences caused by the breeding of bacteria in food. Food packaging technology must cover the light to maintain the freshness of food to the greatest extent

the new packaging of a Norwegian food research institute adopts the material composed of tough paper, aluminum foil and polyethylene plastic layer, which can isolate light, prevent the loss of vitamins and proteins, and achieve the multiple effects of nutrition, freshness preservation and taste preservation

nanotechnology will play a big role in food packaging

what is the principle of nanocomposites used in food packaging materials to achieve better performance than general materials? Generally, the film used for food packaging can pass through gas, because it is plastic, and the molecules are free to accumulate. Some air molecules such as carbon dioxide and oxygen can pass through, but some are fast and some are slow. After the nanocomposite polymer material is made into a film, the microstructure is like pieces of paper, which are placed in the polymer one by one, and arranged along the surface of the film, like sticking tiles, one by one. From a macro point of view, like mosaic, it is actually very small and invisible. In this way, the gas may not pass through. Even if it can pass through, it has to go a long way around, which reduces the gas transmittance and improves the barrier ability of the material. The "nylon 6 layered silicate nanocomposite" being developed in China is used for food packaging. From the appearance, it is no different from ordinary materials, because after nano dispersion, its size is similar to the wavelength of visible light, which can not be seen under ordinary circumstances. But the performance is completely different

nanotechnology used in food packaging may replace the materials used in existing food packaging, such as nylon film in use. If nanocomposite technology is used here, this film will have better performance, stronger barrier, higher transparency and longer shelf life of food. Another development direction is to develop some new food packaging materials and new uses of some materials. The "polyester PET/layered silicate nanocomposite" under development is a plastic bottle used for filling beer. Due to the incorporation of nano materials, the original high-temperature resistant plastic can meet the requirements of high-temperature disinfection in the beer production process, and because of its good barrier performance, beer can be stored for a long time without changing its taste

source: Guangdong packaging

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